Home / 81,199.22-112,054.59-45,389.21

Finding the Fourth Proportional to 81,199.22, 112,054.59 and 45,389.21

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Solution

The fourth proportional to 81,199.22, 112,054.59 and 45,389.21 is: 62,636.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,199.22 : 112,054.59 = 45,389.21 : x
  2. Step 2: Convert to fraction form
    81,199.22/112,054.59 = 45,389.21/x
  3. Step 3: Cross multiply
    81,199.22x = 112,054.59 × 45,389.21
  4. Step 4: Simplify right side
    81,199.22x = 5,086,068,756.70
  5. Step 5: Solve for x
    x = 5,086,068,756.70/81,199.22
  6. Step 6: Final answer
    x = 62,636.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.